Long Pond Ironworks State Park was created in 1766.
Long Branch State Park was created in 1983.
Long Key State Park was created in 1969.
State Forest State Park was created in 1970.
Snow Canyon State Park was created in 1958.
Lake Wappapello State Park was created in 1956.
Lovewell State Park was created in 1967.
Wyalusing State Park was created in 1917.
Custer State Park was created in 1912.
Moraine State Park was created in 1970.
Leaghur State Park was created in 1992.
Wakonda State Park was created in 1960.
Onaway State Park was created in 1921.